The present invention relates to recipient customization of a bone conducting hearing device. Customization of the bone conducting hearing device may include attaching the bone conducting hearing device to a recipient, establishing communication between the hearing device and an external device, generating at least one control setting with the external device, and storing the at least one control setting in a memory device in the hearing device.
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30. A method, comprising:
obtaining data based on a recipient's ability to perceive sound at a frequency with a bone conduction device by operating the bone conduction device when the bone conduction device is attached to the recipient;
using the obtained data in correlation with the respective different frequencies to identify a resonance frequency of the bone conduction device when attached to the recipient;
automatically adjusting a control setting of the bone conduction device based on the identified resonance frequency; and
operating the bone conduction device using the adjusted control setting.
1. A method, comprising:
placing a remote computing device into signal communication with a bone conduction device;
obtaining data based on a recipient's ability to perceive sound at a frequency with the bone conduction device operating at a given output level;
utilizing the remote computing device, generating at least one control setting based on the obtained data;
communicating the at least one control setting to the bone conduction device;
storing the communicated at least one control setting in the bone conduction device;
identifying a resonance frequency of the bone conduction device when attached to the recipient; and
setting a settable parameter of the bone conduction device based on the identified resonance frequency.
20. A method, comprising:
obtaining access to a bone conduction hearing prosthesis attached to a recipient;
vibrating the bone conduction hearing prosthesis at different frequency-amplitude combinations;
obtaining data indicative of the recipient's hearing threshold based on the action of vibrating; and
setting a control regime of the bone conduction hearing prosthesis based on the obtained data, wherein
the action of setting the control regime alters and/or sets an intensity level at which a particular recipient is to experience a hearing percept for a variety of frequency channels of the hearing prosthesis, and
the method further comprises controlling a noise reduction system of the bone conduction hearing prosthesis based on control settings that are based on the obtained data indicative of recipient's hearing threshold.
24. A method, comprising:
obtaining access to a bone conduction hearing prosthesis attached to a recipient;
vibrating the bone conduction hearing prosthesis at different frequency-amplitude combinations;
obtaining data indicative of the recipient's hearing threshold based on the action of vibrating;
developing control data for the bone conduction hearing prosthesis based on the obtained data;
storing the developed control data in a memory of the bone conduction hearing prosthesis;
developing default control settings for the bone conduction device based on the obtained data;
storing the default control settings in the bone conduction device;
generating additional measurements using the stored default control settings; and
modifying the default control settings based on the additional measurements, wherein
the developed control data corresponds to the modified default control settings.
9. A method, comprising:
setting a control regime for a bone conduction hearing prosthesis, including:
evoking respective hearing percepts in a recipient with the bone conduction hearing prosthesis at respective different frequencies, wherein the bone conduction device is attached to the recipient;
obtaining data based on the evoked hearing percepts;
using the obtained data in correlation with the respective different frequencies, developing control settings for the bone conduction device hearing prosthesis; and
storing the control settings in the bone conduction hearing prosthesis, wherein the method further comprises:
setting a second control regime for the bone conduction hearing prosthesis, including storing control settings for the second control regime in the bone conduction hearing prosthesis, wherein
the control regime is a control regime that results in a first percept by the recipient at a given frequency for a first sound environment and the second control regime results in a second percept by the recipient different from the first percept at the given frequency for a second sound environment.
2. The method of
3. The method of
4. The method of
5. The method of
6. The method of
operating the bone conduction device based on the communicated control setting to evoke a hearing percept different from that which would have been evoked in the absence of the communicated control setting.
7. The method of
8. The method of
10. The method of
placing a remote computing device into signal communication with the bone conduction hearing prosthesis;
using the remote computing device to develop the control settings; and
using the remote computing device, communicating the developed control settings to the bone conduction hearing prosthesis so that the control settings can be stored in the bone conduction device.
11. The method of
subsequent to the action of storing the control settings, using the bone conduction hearing prosthesis to evoke a hearing percept with the prosthesis using the stored control settings;
obtaining second data based on the action of using the bone conduction hearing prosthesis using the stored control settings; and
changing the control setting of the hearing prosthesis based on the obtained second data.
12. The method of
13. The method of
subsequent to the action of storing the control settings in the bone conduction hearing prosthesis, using the bone conduction hearing prosthesis in the real world using the stored control settings; and
changing the control setting of the hearing prosthesis based on the use of the bone conduction hearing prosthesis in the real world.
14. The method of
the control settings that are stored are different control settings generated for use in different sound environments; and
the control settings are stored such that the respective settings can be selected depending on a given sound environment.
15. The method of
the data that is obtained in the action of obtaining data was obtained by monitoring and recording the respective frequencies and/or situations in which a recipient of the hearing prosthesis has adjusted the hearing prosthesis while using the hearing prosthesis to evoke the hearing percepts.
16. The method of
the hearing prosthesis is configured to enable the recipient to select between the control regime and the second control regime to better accommodate for a different sound environment.
17. The method of
18. The method of
19. The method of
21. The method of
22. The method of
operating the bone conduction hearing prosthesis based on the set control regime to evoke a hearing percept different from that which would have been evoked in the absence of the setting of the control regime.
23. The method of
25. The method of
26. The method of
27. The method of
developing default control settings for the bone conduction device based on the obtained data; and
modifying the default control settings based on additional data, wherein
the developed control data corresponds to the modified default control settings.
28. The method of
modifying the default control settings based on the additional measurements so as to adjust a magnitude of a hearing percept for a given input relative to that which would be the case in the absence of the modification.
29. The method of
31. The method of
32. The method of
33. The method of
34. The method of
35. The method of
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The present application is a Continuation application of U.S. patent application Ser. No. 13/396,065, filed Feb. 14, 2012, naming Martin Evert Gustaf Hillbratt as an inventor, which is a Continuation application of U.S. patent application Ser. No. 12/190,424, filed Aug. 12, 2008, now U.S. Pat. No. 8,144,909. The entire contents of these applications are incorporated herein by reference in their entirety.
The present invention generally relates to bone anchored hearing devices, and more particularly, to customization of bone anchored hearing devices.
To improve hearing for many hearing impaired individuals, hearing aids that amplify sound to stimulate the eardrum are often utilized. When using these types of hearing prostheses the auditory meatus is generally completely or substantially occluded by a hearing plug or by the hearing aid itself to prevent undesirable acoustic feedback. These plugs may cause the recipient discomfort, eczema, chronic inflammations and/or chronic infections in the auditory canal.
Additionally, there are other types of hearing prostheses that improve hearing for hearing impaired individuals. These types of devices include bone conducting or bone anchored hearing devices (“bone conducting devices”), which transmit sound information to a recipient's inner ear via vibration of the skull bone. When anchored to the bone, such bone conducting devices are generally connected to an implanted titanium screw installed and osseointegrated in the mastoid. The sound is then transmitted via the skull bone to the cochlea (inner ear). This type of bone conducting device generally allows the recipient to perceive sound regardless of whether there is disease or missing parts in the middle ear.
Traditionally, bone conducting devices are problematic since customization of the hearing device for each recipient, if even possible, is done manually, and optimum settings for an individual are difficult to obtain. For example, if a recipient has difficulty perceiving sound, the recipient may only be able to adjust the overall volume of the device. Further, recipient's hearing abilities generally vary significantly, making setting of the bone conducting device complicated. For example, many recipients hear relatively well at some frequencies, but very poorly at others.
Still further, the sound conduction conditions (i.e., the body and head of the recipient, the bone anchored implant and the external hearing device) are different for each recipient, which makes pre-setting of the hearing device impracticable. For example, resonance frequencies typically occur at different frequencies for each recipient.
The present invention relates to a method for recipient customization of a bone conducting hearing device. In one embodiment, the method comprises the steps of attaching the bone conducting hearing device to a recipient, establishing communication between the hearing device and an external device, generating at least one control setting with the external device, and storing the at least one control setting in a memory device in the hearing device.
The present invention also relates to a bone conducting hearing device. In one embodiment, the hearing device comprises a microphone configured to generate an electrical signal, a signal processing unit configured to amplify the electrical signal from the microphone, a vibrator configured to convert the amplified electrical signal into vibrations, an interface configured to allow the hearing device to communicate with an external control device, and at least one memory unit for storing control data for controlling the signal processing unit, wherein the interface is adapted to receive control signals from the external control device for generating vibrations in the vibrator at a plurality of predetermined frequencies, and to receive control settings for the signal processing unit for storing in the memory unit to reproduce the vibrations at each predetermined frequency.
The present invention also relates to a computer readable medium including computer software programmed to execute a method for recipient customization of bone conducting hearing devices. The method comprises the steps of establishing communication between the bone conducting hearing device and an external control device, determining measurement data related to the recipient's ability to perceive sound at a predetermined frequency, generating at least one control setting for a signal processing unit based on the bone conduction threshold, and transmitting the at least one control setting includes transmitting the a plurality of control settings to the hearing device.
These and other aspects of the invention will be apparent from and elicited with reference to the embodiments described hereinafter.
Embodiments of the present invention are described herein with reference to the accompanying drawings; in which:
Aspects of the present invention are generally directed to improving the sound percept of a bone conduction hearing device (“hearing device”) for a recipient. When attached to the recipient, the hearing device may have its control settings altered to allow a recipient improved sound percept at at least one frequency. The control settings may be altered or set using an external device such as a fitting system, PDA, computer, mobile phone, etc.
The external device may alter or set the intensity level at which a particular recipient is to experience a desired percept for a variety of frequency channels. To achieve the desired percept, the external device determines the mV output that evokes the desired percept in the recipient. The external device may repeatedly present acoustic targets to the hearing device and increment or decrement the corresponding mV output until the recipient experiences the desired percept in response to the acoustic target. These output levels are stored in the hearing device for subsequent operations. Additionally, the acoustic targets may be set by the recipient, an audiologist or any other third party in an acoustic domain environment. In such an acoustic domain environment, it is not required to have detailed knowledge of how electrical stimulation signals are defined, generated and/or controlled to set the control settings for the hearing device.
In one embodiment, fixture 106 is anchored into the mastoid bone behind the outer ear; however, the fixture may be implanted under skin within muscle and/or fat or in any other suitable manner. In one embodiment, fixture 106 is a titanium fixture of the type described in U.S. Pat. No. 7,074,222 (the “'222 patent”), which is hereby incorporated by reference; however, the hearing device 100 may be anchored in any suitable manner or position and is not limited to or by the disclosure or the '222 patent. Fixture 106 is preferably made of titanium, since titanium may be integrated into the surrounding bone tissue (i.e., osseointegration); however, the fixture may be any suitable material or combination of materials.
Preferably, as stated above, the detachable body portion 102 is connected to fixture 106 via coupling arrangement 104. In some embodiments, coupling arrangement 104 may be a bayonet coupling or mechanical spring coupling; however the coupling arrangement may be any suitable coupling. The hearing device may include, in addition to the titanium fixture, a spacer element or skin penetrating member 107 which may be connected to the bone anchored titanium fixture by a spacer screw or in any other suitable manner.
In one embodiment, the detachable portion includes housing 110, which is preferably formed from plastic, but may be formed from any suitable material and be any suitable shape or size. The detachable portion 102 preferably includes a microphone 112 (or other suitable sound input device), an electronic unit 114, a battery 116, a vibrator 118, a first memory unit 122, a second memory unit 124 and a data interface 120. It is noted that the hearing device 100 does not need to include each of these elements and may include all, some or none and may include any additional desired elements.
In one embodiment, microphone 112 acquires sound and generates a signal which is sent to the electronic unit 114. Preferably, electronic unit 114 is battery powered and may be a signal processing unit that amplifies the signal from the microphone 112. In one embodiment, the electronic unit 114 is equipped with an electronic filtering device arranged to reduce the amplification in the signal processing chain of the hearing device; however, the electronic unit 114 may be equipped with any suitable components and does not necessarily include a filtering unit. The amplified signal is supplied to a vibrator 118 which converts the electrical signal into vibrations which are then transferred to the skull bone via the titanium fixture 106.
In one embodiment, the hearing device 100 includes at least one memory unit, in communication with, connected to or integrated within the electronic unit 114. Preferably, the memory unit includes a first memory unit 122 for short-term storage, such as a RAM-memory device, and a second memory unit 124 for long-term storage, such as an EEPROM, flash or other suitable non-volatile memory device; however, it is noted that the hearing device may include any number and/or type of memory units. The memory units are configured to store control data for controlling the signal processing in the electronic unit 114.
In one embodiment, the hearing device includes a data interface 120 that enables data communication between the hearing device (e.g., the electronic unit 114) and an external control device or system (“external device”) 126. As stated above, the external device may be external device such as a fitting system, PDA, computer, mobile phone, or any other suitable device. Preferably, the interface allows two-way or bidirectional communication. That is, interface data may be sent from both the electronic unit 114 and the external device 126. For example, in one embodiment, the interface may be adapted to receive control signals from the external device for generating vibrations in the vibrator at predetermined frequencies, and receive control settings for the electronic unit for storing in the memory unit. In some embodiments, however, the interface is a one way interface, allowing only data to be forwarded from the external device 126 to the hearing device. In other embodiments, communication is a one way interface with data being forwarded from the hearing device to any type of receiving device. The data may include measured control signals or any type of status information or other suitable data. This information may be used to merely monitor the hearing device or be used with a control device that may be a separate device or be integrated into the hearing device or be any other suitable device.
As shown in
In accordance with the embodiments of
In one embodiment, the acoustic domain environment presents fitting information or other data in the acoustic domain; that is, the data is presented as acoustic-based data which may be understood by a third party or is the form commonly used by audiologists to fit hearing aids. In one embodiment, the acoustic domain environment includes one or more graphs or plots displayed on a user interface 206 that illustrate frequency-gain relationships, such as a target audiogram 207 described in greater detail below with reference to
In one embodiment, for each of the acoustic targets, external device 204 determines the my output level that evokes the desired percept in the recipient. This may be accomplished by having the external device 204 repeatedly present each acoustic target to the hearing device and increment or decrement the corresponding mV output level until recipient 205 experiences the desired percept in response to the acoustic target. These levels are included in the control settings and are stored in the memory for subsequent normal hearing device operations by that recipient.
In embodiments of the present invention, in the initial stage, a selected acoustic target is presented to hearing device 100. The selected acoustic target may be presented as an acoustic test signal 214 having the intensity and frequency of the acoustic target. In certain embodiments, this acoustic test signal 214 may be generated by acoustic signal generator 216. As shown, acoustic test signal 214 may be presented to the recipient via audio cable 218. Alternatively, acoustic test signal 214 may be presented by wireless transmission. In certain embodiments of the present invention, third party 202 presses a control button on user interface 206 to present acoustic test signal 214 to recipient 205.
Presentation of the selected acoustic target causes an electrical stimulation signal to be delivered to the hearing device via the data interface 120 (
Following presentation of the acoustic target, a determination is made as to whether the delivered stimulation signal evoked a desired percept. This determination is based on the response of recipient 205 to the stimulation. As shown in
As described below in more detail with reference to
Determination that the desired percept was evoked indicates that the output level then specified is the correct level which will cause the desired percept at the target intensity and frequency. This level, referred to herein as the default control setting, generated in the external device may be stored by external device 204 for later use in generating the recipient's control settings. The above process may be repeated until default control settings corresponding to all acoustic targets have been determined. After determination of default control settings corresponding to all desired acoustic targets, the default control settings are loaded into electronic unit 114 via the communication link 209, as indicated by arrow 211. Typically, the default control settings are stored in long term memory; however, they may be stored in short term memory, if desired. As described in greater detail below with reference to
At block 304, the external device is connected to the hearing device. As stated above, the external device may be coupled to the hearing device using wires, wirelessly or in any other suitable manner. At block 306 the external device transmits a control setting to the hearing device, altering the control settings for the hearing device to improve sound percept at a frequency for the recipient. In some embodiments, the control settings are based on the recipient's real world experience and/or the third party's experience with the device. For example, the recipient may find that volume adjustment is necessary for various or all frequencies. In one embodiment, the recipient would alter the control settings for various or all frequencies using external device 204. In another embodiment, the recipient could convey this information to a third party, who would then alter the control settings for the various or all frequencies using the external device.
As stated above, the control setting may be altered by storing commands in the memory that indicate an output of the electronic unit to the vibrator. For example, if the recipient determines that a decibel increase is necessary at a specific or plurality of frequencies, the control settings are altered or supplemented, which instruct the electronic unit to generate a higher mV output at the specific frequency or frequencies corresponding to the particular increase.
In block 406, measurement data may be obtained related to the recipient's ability to perceive sound at various frequencies when the hearing device is fitted to the recipient. In one embodiment, the measurement data may be related to bone conduction threshold levels at various frequencies. For example, audiogram data may be generated that indicates bone conduction threshold levels for the signal power at which the recipient is able to perceive sound at various frequencies. However, it is noted that the measurement data may be any level of percept at a specific frequency or range of frequencies for the recipient and does not necessary need to be the threshold level. Bone conduction threshold is typically the level where a stimulus or a change in stimulus to the bone is sufficient to produce a certain sensation or an effect (e.g., minimum level for the recipient to perceive a sound). The stimulus used is preferably a series of sinusoids, warble tone, noise or pure tones; however, the stimulus may be any suitable stimulus.
In one embodiment, the stimulus is generated using the external device in communication with the hearing device. The external device generates a signal that produces a desired output from the electronic unit. In one embodiment, the output is a predetermined mV output. This predetermined output vibrates the vibrator to illicit sound percept in the recipient.
Preferably, the vibrator in the hearing device is used to generate the vibrations; however, an external sound source or vibration source (not shown), controlled by the external device 204, may be used for generation of the measurement data. If an external vibration source is used, it is preferably coupled to the fixture 106 (
As stated above, by using the vibrator in the hearing device, more accurate measurement data may be generated. For example, using the vibrator in the hearing device would allow measurement of the influence of the specific sound conduction conditions, such as resonance levels occurring in the hearing device, in the connection between the hearing device and the skull bone, or in the patients head. Further, as stated above, measurements based on the hearing device itself may eliminate the risk of conversion errors and the like (e.g., the compensation value using accelerometers).
Preferably, threshold level measurements for the recipient's hearing are acquired at at least one different frequency, and preferably at at least 10 different frequencies, however, these measurements may be obtained at any number of suitable frequencies. For example, the measurement at various frequencies may be performed as an audiogram, where the measurement is made at octave frequencies, and optionally also mid-octaves, between 125 and 8000 Hz. However, it is noted that the measurements may be made at any frequency or frequencies or within any frequency band or in any suitable manner.
In one embodiment, the recipient or third party may repeatably send signals to the hearing device at a specific frequency until the desired response from the recipient is obtained. During this procedure, the recipient indicates if a sound is perceived at a specific frequency. Such indication may be verbal, non-verbal or any desired indication. If the recipient does not perceive a sound, no indication is provided. If no indication is provided, the mV output is increased by a desired or predetermined level using the external device. This increase in mV output is continued until the recipient indicates that the sound is perceived or until a suitable level of sound percept is achieved. This indication is the measurement data.
Based on the measurement data, the external device at block 408 generates a default control setting for the electronic unit 114. In one embodiment, this default control setting increases the amplification at a frequency or multiple frequencies where the recipient's ability to perceive sound is reduced. In other embodiments, the control setting provides lower amplification at other frequencies.
In one embodiment, the control setting increases or decreases the m output of the electronic device to generate a desired vibration of the vibrator in the hearing device. For example, if it is determined that the recipient requires a 6 dB increase to perceive sound at a specific frequency, a control setting is generated that instructs the electronic device to send the required mV output. Typically, a 6 dB increase requires doubling the mV output. The control setting may be stored in memory 122 if further enhancement is anticipated.
At block 410, the initial control settings indicating, for example, the threshold level for the recipient, may be stored in the memory unit of the hearing device as default control settings for subsequent use. The control setting may be stored automatically or manually or any combination thereof. For example, once the recipient indicates that sound is perceived, the third party may indicate such on the control panel and the control setting is automatically stored. In another embodiment, the third party or the recipient may have the choice of storing that control setting when the recipient indicates that the threshold has been met or not storing the control setting and storing a different value for percept at sound for that frequency.
To further enhance the recipient's perception, the control settings may be altered. The altering of the control settings may occur at the initial fitting of the hearing device or at a subsequent time. As illustrated in
In one embodiment, the recipient may alter the control settings using a PDA or other portable device, such that the recipient adjusts the control setting in the real world environment. For example, if the recipient determines that it is difficult to perceive low frequency sound, the recipient may adjust a low frequency control setting using an external device such as a PDA while attempting to perceive the real world low frequency sound. In another embodiment, the PDA or other portable device is used to monitor and record the various frequencies or situations in which the recipient has reduced sound percept and such data may be downloaded into an external device that alters the control settings.
In one embodiment, the control settings may be altered by repeatedly increasing or decreasing the output of the electronic unit until the desired percept is reached. For example, if the third party or recipient indicates that the threshold level for a specific frequency is inadequate, the external device may increase the output of the electronic unit until the desired percept is reached. This measurement data may then be stored in the memory unit of the hearing device as a control setting for this frequency. This procedure may be repeated for all or some frequencies.
As illustrated in block 416, the personally adapted control settings may then be stored in the hearing device for subsequent use, replacing the previously stored default control setting. Additionally, the personally adapted control settings may merely be added to the hearing devices memory in addition to the default settings. When the final control settings have been obtained, these are preferably forwarded to the non-volatile memory 124 in the hearing device for subsequent use. Thus, the recipient runs no risk of loosing these settings during ordinary use of the hearing device, after the initial setting procedure, or after subsequent updates.
In one embodiment, a plurality of different control settings may be generated for use in different sound environments. In other words, the hearing device may have available control settings that alter the recipient's percept at the same frequency or frequency bands depending on the environment. In one embodiment, the different control settings are selectable on the hearing device. Thus, individual optimization is possible for various programs that are selectable by the recipient. For example, the recipient may select a program for indoor environments, a program for outdoor environments, a program for listening to electronic sound devices, such as MP3-players, or any other suitable environment. The control settings of each of these programs may be generated and stored separately as described above.
Target audiogram 207 illustrated in
As shown in
Third party 202 may adjust the acoustic intensity levels of acoustic targets from the default levels depending on the listening needs of the recipient, typical usage environment, etc. These adjustments may be made using, for example, control inputs 210 described above. As shown in
As noted above, in embodiments of
As described above, external device 204 measures the output levels corresponding to each acoustic target 508 that will result in a desired percept when an acoustic signal is presented to hearing device 100 at the target frequency and intensity. In some embodiments, indications of these measured levels may optionally be provided from electronic unit 114 to external device 204 for display to third party 202.
Rather than displaying the measured mV levels directly to third party 202, external device may display a representation of the output in a user friendly format which does not require an understanding of the output levels.
It should appreciated that target audiogram 207 may be displayed on any suitable apparatus or media. Similarly, although embodiments of the present invention are discussed herein with reference to target audiogram 207, other presentations of frequency-gain relationships are feasible. For example, it should appreciated that such frequency-gain relationships may be represented in other forms including, but not limited to, bar graphs, tables, histograms, drop-down menus, radio buttons, text boxes, or any other method for displaying such data.
In some embodiments, the control settings are configured to reduce effects of resonances occurring in the hearing device. The external device may be operable to measure resonance frequencies by a continuous or discontinuous sweeping of frequencies within a certain frequency band, and preferably over a total frequency range including all frequencies normally perceivable by the human ear. In some embodiments, the hearing device has a noise generator to perform these sweeps. In other embodiments, a sine generator performs the frequency sweep. As one of ordinary skill in the art would appreciate, either of these devices or any other suitable device may be used to determine the resonance frequencies. Typically, in the present embodiment, the resonance frequencies occur at about 700 to 800 Hz; but they may occur at any frequency. As one of ordinary skill in the art would appreciate, these data are then stored in the memory unit and a peak finder function may be used to determine where the resonance occurs in each frequency. A resonance notch filter (anti peak, band stop) may then be set to reduce the effects of the resonance frequencies. The present system allows the recipient or a third party to use an external device to control the setting of the resonance notch filter.
In some embodiments, the control settings are configured to control a feedback management system. That is, a system configured to cancel or reduce feedback. As one of ordinary skill would appreciate, such a system may be used to increase audibility of the hearing device by allowing increased amplification using signal processing methods. For example, a software application may be used to determine the level of the feedback management in use and thus, determine how much additional amplification may be added before reaching the amplification limitations of the hearing device. The present system allows the recipient or a third party to use an external device to control the setting of the feedback management system.
In some embodiments, the control settings are configured to control a noise reduction system. In some embodiments, a “beam former” is used to reduce or eliminate sounds from certain angles. In another embodiment, a modulation index calculation may be performed where signals with low modulation are reduced or removed. The present system allows the recipient or a third party to use an external device to control the setting of the noise reduction system.
In some embodiments, the control settings control the use and volume of an alarm signal. The alarm signal may produce an audible beep or other warning signal. The control settings may control the audible signal based on the real world environment. The hearing device may be configured to determine the background noise and adjust the alarm signal to compensate for the background noise. The hearing device may automatically determine the level of the background noise or the recipient may manual check the level of the background noise by engaging a switch or button or in any other manner. Thus, in a quiet environment, the control settings may reduce the level of the audible alarm signal, compared to the audible level in a loud environment. In some embodiments, the alarm signal has a minimum loudness level for use in very quiet environments and a maximum loudness level for use in very loud environments. Additionally, the control settings may set the alarm levels for each environment with an offset of, for example 6 dB louder than the environment. Further, in one, embodiment, the control settings are configured to select a frequency of the alarm signal, so that a frequency is selected within a frequency band in which the recipient has relatively good hearing abilities.
The control settings may control any suitable or desired variety of parameters within the hearing device. One of ordinary skill in the art would understand that the control settings would be operable to 1) control the compression at various frequencies, 2) to control the maximum power output at various frequencies, i.e. a restriction to the maximum power output that is related to the patient's ability to hear at each frequency or frequency band; 3) control directivity of the sound perceived by the microphones of the hearing device, i.e. if the received sound is received mainly from the front, or in all directions; and 4) control the speech enhancement at different frequencies.
As noted above, the external devices described herein include interactive software and computer hardware to configure individualized recipient control settings. Therefore, the embodiments described herein may be carried out on a computer readable medium having computer-executable instructions for executing the recipient customization of the bone conducting hearing device.
The customization process performed separately for both sides of the recipient's head. In such an embodiment, the customization processes may be performed simultaneously or sequentially.
Although the present invention has been fully described in conjunction with several embodiments thereof with reference to the accompanying drawings, it is to be understood that various changes and modifications may be apparent to those skilled in the art. Such changes and modifications are to be understood as included within the scope of the present invention as defined by the appended claims, unless they depart there from.
Hillbratt, Martin Evert Gustaf, Asnes, Gunnar Kristian
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